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7,9-Dimethyl-3-phenylnaphtho[1,2-b]furan-4,5-dione

✍ Scribed by Shen, Yudong ;Tian, Yuan-Xin ;Bu, Xian-Zhang

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
1024 KB
Volume
63
Category
Article
ISSN
1600-5368

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πŸ“œ SIMILAR VOLUMES

A new synthetic route to 2-substituted n
A new synthetic route to 2-substituted naphtho[2,3-b]furan-4,9-dione2-Substituted Naphtho[2,3-b]furan-4,9-dione
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## Abstract 4,9‐Dimethoxynaphtho[2,3‐__b__]furan 9 was obtained in 91% yield __via__ the reductive methylation of naphtho[2,3‐__b__]furan‐4,9‐dione 2. After treatment of 9 with butyllithium, the mixture was allowed to react with __N,N__‐dimethylacetamide, followed by oxidization with cerium(IV) dia

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The title compound, C 15 H 20 O 4 , also known as dihydrohelenalin, is a drug obtained from a Chinese plant. It contains a seven-membered ring in a chair conformation and two fivemembered rings in twist conformations. The crystal packing involves O-HÁ Á ÁO hydrogen bonds. ## Related literature Fo

6,8-Dimethyl-4-phenyl-2-tosylpyrrolo[3,4
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In the title compound, C~24~H~25~N~3~O~5~S, both the pyrrolidine and dihydropyran rings adopt envelope conformations, and are __cis__-fused. The tosyl group is equatorially attached to the pyrrolidine ring. The glide-related molecules are linked by Cβ€”H...O hydrogen bonds, forming a __C__(6) chain al